Silentnight Comfortable Foam Mattress
- Real space for one: At 30cm wider than the UK single, this size gives a solo sleeper genuine stretching room without the footprint of a full double.
- Fits rooms a double won't: It's 15cm narrower than the UK double, which can be the difference between a door that clears the bed and one that doesn't.
- Soft feel suits solo side sleepers: The soft foam lets you sink in a little, a cushioned feel that side sleepers with the whole 4ft width to themselves tend to enjoy.
- Sensible for a guest room: Foam absorbs movement well, so visiting couples sharing the occasional night are less likely to disturb each other.
- Easy to buy for: The 4ft small double is a standard UK size, so frames and fitted sheets are straightforward to find.
This size suits you if...
You sleep alone and have outgrown a single but your room can't take a full double, you're furnishing a box room, studio or loft conversion where every centimetre of width matters, or you need a guest bed that couples can share for the odd night without dominating the room.
Consider another size if...
You share the bed every night, or you're a front sleeper or heavier body who needs a firmer surface than this soft foam offers. For nightly couples, we'd recommend the UK double instead, allowing at least 2.6m x 2.8m of room.
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What size is the Silentnight Comfortable Foam mattress in a UK small double?
It measures 120 x 190cm, which is 4ft x 6ft 3in. That's the standard UK small double footprint, so it will fit any 4ft bed frame and take small double fitted sheets without any awkward gaps or overhang.
How much floor space does the UK small double need?
We suggest a room of at least 2.4m x 2.8m. That leaves enough space to walk round the bed and open the door, which matters in the box rooms and studio flats this size is usually bought for. Measure before you order, especially in a loft conversion where sloping ceilings eat into usable space.
Should I get the UK small double or the UK double?
The UK small double is 15cm narrower than the UK double and the same length, so the choice comes down to your room and how the bed is used. Sleeping solo in a compact room, take the small double. Sharing nightly, the UK double is the better call, and we suggest at least 2.6m x 2.8m for it.
Can a couple share the Silentnight Comfortable Foam in a small double?
For occasional nights, yes, and the foam absorbs movement well, so one person turning over is less likely to wake the other. For every night, it's a squeeze, and the soft feel also suits lighter bodies best. Couples sharing full time would do better with the UK double, which is 15cm wider.
Is a UK small double a good upgrade for a teenager?
Often, yes. It's 30cm wider than the UK single but exactly the same length, so a teenager gets noticeably more room to sprawl without the bed swallowing the floor space. The soft feel of this mattress tends to suit lighter bodies and side sleepers, which fits many teenagers well.